Land use land cover change detection using Remote sensing and GIS technique: A case study of Addis Ababa, Ethiopia
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A B S T R A C T
Land use and land cover change is a modification of the earth surface by humans, due to an interaction between natural and anthropogenic processes. Land use land cover change provides important input for making decision regarding environmental management and planning the future. The objective of this research is assess the LULC changes in a fast growing city Addis Ababa by using satellite image of the years 2000, 2010, and 2023 in the study area using remote sensing and GIS techniques. Satellite images of the year 2000, 2010, and 2023 were downloaded from the USGS Earth Explorer online portal (path: 168, row: 54). To do this change detection supervised classification method has been employed. Supervised classification is important for grouping the different class of LULC sensed from the satellite imageries. The Land use land cover change in the respective years were obtained as the difference of the values of different years of the same category while percentage change is obtained by dividing it with the total area and multiplying by hundred. This calculation gives information on the trend of transformation of land use land cover over the time. The result indicates that during 2000 to 2010, the areal coverage of vegetation, bare land, and Agriculture land were decreased by 175.4 ha, 13,174.7 and 1,776.7 ha, respectively. In addition to that, Built-up area and water body land use land cover are increased in area coverage by 13,613.8 ha and 1,512.9 ha, respectively. Preceding period (2000–2023) Built-up showed an area increment of 12,919.4 hectare and vegetation, bare land, water body and agriculture land showed a decrease in area of 3,519.7, 5,839.3 ha, 175.7ha, and 3,387.5 respectively.